Nut-lock.



RRY.

4 Patented June 13, 1911 ,ence being had to the accompanying drawwi -f i Q nut locks and consists in the construction,

I very readily and, cheaply manufactured, and

whichmay. be easil applied to a bolt and nut, .to'preventtheinut from. working loose 1 is a perspective view of a bolt provided with;

and,usefullm provements in Nut-Locks, of

,, ,combination{ and arrangement of devices- ,here nafter descrlbed and cla med.

.an mproved ..nut;, locking device consisting ,ota washer and .base, for application ona,

- engaged position in full lines, and in disengaged position 1n dotted lines.

any suitable thickness. In practice, I pro Anson w."

fo all when; at "concern! I Be it known'that I, ANsoN W. CUnRYJa fthe, ,Hpited States, residing at' v aunton, .the. county of Augusta and State qr have invented certain new the following is a specification, refer lates to improvements in objeet of tlie invention is to provide bolt nnden the nut, and the provision of the anumber of openings, with which the base improvedinutlocking device which may be onthe bolts; 1 I g I I the accompanying (1I21W1IlgS-Figur 1 not looking devices constructed in accordance with my invention. Fig. 2 is a sectional. view on a plane disclosing the locking pin, the said locking pin being shown in elevation and its locking arm. being shown in Fig. 3 is a sectional view on a plane disclosing the base piece. Fig. 4 is a similar view on a plane disclosing the washer.

3 In accordance with my invention, I provide a bolt 1 which isotherwise of usual construction, and is provided at the inner end of its screw threaded portion2, with a shoulder 3 which is here shown as oval or elliptical form. In connection with the bolt, I

also provide a washer 4, which may be of vide several of these washers whichvary in thickness, so that any one of them may be used as required.

The washer bears on one side of the block or other object a through which the bolt extends, the said bolt passing through the 13st; orrsreiunren, *vrnern' ra;

I i V "f i Speeifieationof Letters Patent. Patented 9371111913, 1%11. ,epplication filjedto ctober 26 i i i 19,10. s no; 589,165.

central opening in the washer and on the outerside ofthe ,washer is placed abase piece 5, which 1s sim lar in shape toithe nut 6,

but is somewhat larger. This base piece is provided with an opening 7 through which the shouldered portion 3 of the bolt extends, the said openingbeing oval or ot othersuit able shape, to fit the saidshouhered portion of the bolt, and; prevent the .said base piece from turning onthebolt. 'l ihe said base piece is provided in its outer sidenvith a .Series of recesses ,8 of suitabledepth, which recesses preferably do not extend entirely through the base piece, and anysuitable number of the said recesses may be provided and they may be disposedat any desired distance apart.

The nut 6 is provided'near one corner with a transverse opening 9, whichmay reg- .and the saidnut is also provided in one side with an opening '10 at right angles to and piece, and hence prevent the nut from workmg loose on the bolt. This pin is preferably made of malleable iron. This locking pin is provided at its outer end with an arm 12 which is bent as shown and is provided on one side of its outer terminal with a stud 13 which after the arm 12 has been bent over one side of the hot- 6, may pass through the opening 19 in the nut, and engage a notch 14 on one side of the locking pin. In order to thus engage the stud of the arm 12 with the opening 10, and the notch 14, the said arm 12 is bent as required by a hammer or other suitable instrument. Y

ister with any one or the openings 8 of the base piece as the nut is turned on the bolt,

It will be understood that by reason of the hence cannot be withdrawn from the opening 8 in the base piece with which it is engaged, and so the locking pin coacts with the nut and with the base piece to firmly lock the nut in place so that it cannot work loose or become casuallydisengaged' from the bolt. Owing to the fact that the locking pin with its arm;,,i'2 is made of wrought or malleable iron, the arm may straight.

ened out at anytime to the extent required to'dis ngage its stud 13 from the opening 10 of the nut, and the notch H of the lockmg pin in order to permit the locking pin to be withdrawn from the nut, and from the recess 8 of the base piece with which it ,is engaged so as to permit the nut to be taken ott' from the bolt or adjusted. The pin may be used a number of times since the malleable material of which itis constructed admits of the arm 12 being bent repeatedly before the same will break. In applying the nut, should itbe found that when the nut is screwed up to the base piece, its opening 9 will not register with any one of the openings 8, a thicker or thinner washer. will then be used, so as to cause the opening 9 whenthe nut is fully screwed up to coincide with one of the recesses 8.

It will be understood from the foregoing that my improved nut lock is very cheap and simple, is very strong and durable, is very effective in preventing the nut from workingloose on the .bolt and that the same is very strong and durable and may be used a number of'times. i

I claim 1. In combination with a bolt and a base piece having means to prevent the base piece from turning on the bolt, said base piec'e being provided in its outer side with locking recesses, a nut on the bolt to screw against the base piece and provided with a transverse opening and with a locking opening communicating with said transverse opening, and a locking pin in the transverse opening of the nut and to engage one of the recesses of the base piece, the said transverse pin having a reversely bent arm at its outer end, to extend on one side of the nut,

and provided with a stud to enter the lockaezaose recesses of the base piece,'the said transversepin having a reversely bent arm at its outer end, to extend on one side of the nut and provided with a stud to enter the locking opening of the nut and prevent the withdrawal of the locking pin, the said locking pin being further provided in one side with a notch for engagement by the said stud.

3. In combination with a bolt and a base )iece haiing means to preventthe base piece lrom turning on the bolt, said base piece being provided in its outer side with locking recesses, a nut on the bolt to screw against the base piece and provided; with a transverse opening and with a locking opening communicating with said transverse opening, and a locking pin in the transverse opening of the nut and to engage one of the recesses of the base piece, the said trans verse pin having a reversely bent arm at its outer end, to extend on one side of the nut, and prevent the withdrawal of the locking pin, and a washer of suitable thickness on the inner side of the base piece.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses. I AXSOX V CURRY. Vitnesses: 1 G20. S. Livixos'rox, M. K. REEDER. 

